Question details

ACS880 FAULT

when i commission acs880 drive and Running test at local/remote mode on drive CDP i found .

* at local mode of cdp-drive it behave & runs ok . in this condition at running time drive cant switching to directly remote mode for LCS without lacting stop buttom of keypad .it's correct .

* But if we running drive at any speed from LCS thorugh remote mode of CDP(keypad) that time if anybody try to directly switching convert remote-to-local mode in CPD then its suddenly changeup haveing taken instant running speed from LCS .

without putting stop-command DI and below terms.

[In this time no warrning/fault code occur .as drive runs another source ]

The drive model no-ACS880-01-145A-3 and use for application:-pump as per required customer.
they control drive on his control-desk using push-bottom for start/stop,increase/decrease,fault reset through ZCU-1 card DI1,DI2..etc.

My question ?- when we start running vfd any reference at display keypad(CDP) of drive on local mode source that time we can't unable instantly change mode "loc" to "rem" without stop drive running position ....it's ok i think .

But same performance if i apply customer source THROUGH(LCS/CNTROL-DESK) OF vfd/(ACS-AP-I) as remote mode, if we change drive at running CONDITION REMOTE to local mode (display-keypad/ACS-AP-I)it's changed simultaneously without stopping vfd .
and same lcs(customer control) reference-speed/rpm has perform on dirctely loc-mode(vfd keypad),no indicate any code of warning or fault .

BUT LIST OF VFD MODEL BELLOW THEY are HAVE BEEN TAKEN ACTION NOT-CHANGE MODE simultaneously.
which warning CODE showing/indicateing its means DRIVE RUNNING ANOTHER SOURCE [SO FIRST 'STOP'VFD RUNNING CONDITION]
ACS350,ASC550,ACS580,ACS560,ACS800,ACS850